Brake.



E. 1. LEE.

' BRAKE.

APPLICATION FILED AUG-22. I916.

l fififi v V Patented Apr. 30, 1918.

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' tipecineetion 01 Letters Patent. Pwijmntedr Apr. ll lltl litlu llfit'id i520,

' Application filed August 2222, 19m. Serial 116,365.

- zen of the United filtates, and a resident of but is elongated.

Stroudsburg, in the county of lvlonroe and State of Pennsylvania, have invented a new and Improved Brake, of which the follow ing is a full, clear, and exact description.

My invention has for its object to provide a brake particularly well adapted for use on automobiles, and in. which the brake shoe is prot ided withintegral jaws which are bent back and riveted to the body of the brake shoe, shims being detachably mounted on the jaws for engagement'by the brake cam, so that a lining or wearing member on the brake shoe may always be disposmi rela tively to the brake drum in the best operative position.

Additional objects of the invention will appear in the following specification in which the preferred form of the invention is disclosed.

In the drawings similar reference charactors denote similar parts in all the views. in which- Figure 1 is a sectionalelevation illustrating a brake drum and a brake shoe provided withmy improvement; and

F ig. 2 is a sectional View on the line 2 of Fig. 1.

By referring to the drawings it will be seen that within a brake drum 5 which is mounted on a wheel having a housing 6, a brake shoe 7 is disposed. this brake shoe 7 being in the form oi? a split spring ring. and being provided with a bracket 8 which is secured to the brake shoe by rivets 9, the bracket 8 having a bearin 10 in which is disposed a bolt 11, this boi t being mounted on the housing 6. It will be noted that the bearing lQ ofthe bracket 8 is not circular, This is for the purpose of permitting the bracket and the shoe portion to which the bracket issecured. to have a slight'l'novement toward and away from the-center of the wheel so that the portion of the brake" shoe immediately in the rear of the pin or bolt 11 will frictionally en gage the drum 5, as well those portions of the shoe which are near the ends of the.

shoe on the opposite side of the center.

The'breke shoe 7 is provided with two jews 12 which are integral with the brake shoe and which extend inwardly from. the body oi the brake shoe, the jaws 12 being provided with rearwnrdly entending tor minals 13 which are riveted to the body of the brake shoe 7 Eli l4n By this construc tion the jaws of the brake shoe 7 are read,

ily constructed. and are very strong, so that there is no danger of the ewe bending under severe strains. in each aw 12 there 15 a bearing l t in which is disposed a bolt 15,

the bolt 15 extending inwardly through an opening in a shine 16 and then through the bearing 14. As will be seen from the draw"- ing, the shim is provided with a conical recess into which the head of the bolt is coun tersunk. A look washer 17 and a nut 18 are mounted on each of the bolts 15, so that thetherefor, or, if desired, a plurality of shims 7 5 may be mounted on each of the jaws 12.

This arrangement is provided to take upany wear of the lining or wearing member 19 which is secured 'by rivets 20 to the outer face of the brake shoe 7. When this lining or wearing member 19 has been worn down,

larger, or a greater number of shims 16 may i be mounted on the faces of the jaws 12. to hold the brake shoe 7 with its lining or wearing member 19 in position to contact with the brake drum 5'under the best con ditions.

In the terminals 13 which extend rearwardly from the jaws 12, there are'openings 21 through which are disposed the terminals 22 of a spring 23. In this way the ends of the spring 23 are secured tothe terminals 13 of the j aws 12, which serve to draw the jaws 12 with the ends of the brake shoe 7 in the direction of each other until they engage the shims 16, 'so that-ordinarily the lining or wearing member 19 on the brake shoe 7 will not actively engage the brake drum 5.

Between the slums 16 there 1s disposed a brake cam :24 which when turned presses the 0 shims 16 outwardly. by which means the lining or wearing member 19 on the brake shoe 7 is forced into active engagement with the brake drum 5; The brake cam 24 is journaled in the housing 6, and is rotated by any suitable means. such as a lever 25.

Having thus described my invention, ll

claim as new and desire to secure by Letters Patent:

1. In a, brnlre e brelre shoe having integral. H0

jaws bent inwardly and then back to the body of the brake shoe where they aresecured, and a brake cam disposed between the jaws, for the purpose specified.

2. In a brake, a brake shoe having integral jaws bent inwardly and then back to the body of the brake shoe, a brake cam disposed between the jaws, and a spring having its terminals secured to the jaws, for the purpose specified 3. In a Make, a brake shoe having integral jaws bent inwardly and then back to the body of the brake shoe where they are secured, and a brake cam disposed between the jaws, shims, and means for detachably securing the shims to the faces of the jaws. I

4. In a brake, a circular brake shoe, a bracket secured to the brake shoe and having a bearing, an axle housing, a bolt journaled in the bearing and' secured to the axle housing, the brake shoe having integral jaws bent inwardly and then back to the body of the brake shoe where they are secured, and a brake cam secured between the jaws, for the purpose specified.

in a brake, a circular brake shoe, a.

bracket secured. to the brake shoe and having a bearing, an axle housing, a bolt journaled in the bearing and secured to the axle housing, the b alie shoe having integral jaws bent inwardly and then back to the body of the brake shoe where they are secured, and a brake cam secured between the jaws, shims, means for detachably securing the shims to the faces oi. the jaws, and a spring having its terminals secured to the jaws, for the purpose specified.

6. In a brake. a brake shoe comprising a split spring ring, the ends of the ring being bent inwardly and then back to the body portion of the brake shoe where they are mired, and a bra kc cam disposed between the inwardly bent portions.

In a brake, a brake shoe comprising a split spring ring, the ends of the ring bein bent inwardly and then back to the body portion of the brake shoe where they are secured, a brake cam disposed between the inwardly bent portions, and a shim carried by each inwardly bent portion on the surface facingthe cam, and means for detachably holding the shims in position.

8. In a brake, a brake shoe comprising a split spring ring, the ends of the ring being bent inwardly and then back to the body portion of the brake shoe where they are secured, n

brake cain disposed between the inwardly bent portions, and a shim carried by each inwardly bent portion on the surface facing the cam, means for detachably holding the shims in position, said last named means comprising a bolt arranged to pass through each of said inwardly extended portions, and a nut disposed on the bolt in the loop formed by the inwardly and backwardly bent portions.

9. In a brake, a brake shoecomprising a split spring ring, the ends of the ring being bent iiiwardly and then back to the body portion oi the brake shoe where they are secured. a brake cam disposed between the inwardly bent port ions. and a'shim carried by each inwardlv bent p rtion on the surface facing the can], means for detachably holding the ,shiins in position, said last named means comprising a bolt arranged to pass througheachof said inwardly extended portions, and a nut disposed on the bolt in the loop formed by the inwardly and backwardly bent portions, each of said shims being provided with a recess and the head of the bolt being countersunk in the recess.

10. In combination with an annular flange on a wheel hub. a brake sh e consisting of a severed ring of pring i'naterial having the severed ends widened radially, said shoc bein, located within said annular flange and supported upon a fixed pin passing through a radially slotted hole in said shoe; a can:

positioned between the severed ends of said shoe and means for actuating said cam to further separate the ends of the shoe and expand the latter to contact with said annular flange.

11. In combination with an annular flange on a wheel bob, brake shoe consisting of a. s vered ring of spring material having the severed ends widened radially, said shoe located within said annular flange and supported upon' a fixed pin passing through a radially slotted hole in said shoe diametrically opposite to the severed ends; a strip of frictional material secured on the outer periphery of said shoe; a cam positioned between the severed ends of said shoe, and means for actuating said cani to further separate the ends of the shoe and expand the latter to contact with said annular flange.

liLMER JESSE LEE.

Witnesses JOHN S. IIU'FIPURI), FRAXK H. Anmxn-m, 

